Manziel connected with rookie Shane Wynn on a 21-yard TD pass in the fourth quarter. Playing against Buffalo’s backups, Manziel finished 10 of 18 for 118 yards and made one of those Johnny Football plays — rolling left and completing a 37-yard pass — that made him an electrifying college star.

With the score tied 3-3, the Browns were backed up at their own 4 before Manziel, who played the entire second half, drove them to their go-ahead score. He completed 6 of 7 passes on the drive, highlighted by his 37-yard strike to rookie Darius Jennings.

Following the game — which featured no shortage of Manziel fawning on the team’s official Twitter account — Browns coach Mike Pettine reiterated that McCown, who threw interceptions on Cleveland’s first two drives, was firmly the No. 1.

“We’ll evaluate both guys,” Pettine said. “I’m not going to sit here and talk about trying to start up a quarterback controversy.”

Manziel said he’s happy to be on the field and he’ll leave the number of snaps up to Pettine.

“Would I like to be in there with the ones? Sure,” he said. “It’s not my call, and if that decision does come, I’ll be ready to hop in there. But for now, I’m making the most of the opportunities I’m getting.”

McCown (7 of 10 for 57 yards and two interceptions) did nothing to lock up the starting gig. He has not been named Cleveland’s Week 1 starter, and Manziel’s performance could further delay any decision.

Following the game, McCown underwent X-rays on his right ring finger. McCown said initial tests were negative, but that he may need more.